The top blinking light is the anti theft...normal. The lower light is the the oil pressure light. noticed the Door ajar light does not come on anymore. But im sure that will change as soon as i post this.

Just read 3 pages of posts re the mystery beep and associated symptoms. My 06 ZXW has, just this morning, greeted me with the beeping as I walked past it in the driveway. Also am seeing flickering of the oil pressure light and door ajar indicator. Happens key in or out. Battery voltage engine off reads about 12.5V, engine running about 14.4V. When charging system is active all indicators extinguish and behave appropriately. The anti theft indicator has always blinked when engine is off and key out so I don't really think it blinking is an issue. I'll note that a few weeks ago I got an indication that the fuel cap was unsealed along with a code from the ALDL connector but re-seating the fuel cap seemed to clear the problem up. Wish I could OFFER some help but right now I'm tracking symptoms. I'll mention that my car has just over 49K miles and while I did use it to kill a deer a few years back, it was repaired by the Ford dealer apparently successfully with no lingering issues. Hope somebody may have some new insights. I'll happily share any wisdom my experience reveals. Thanks.

Our 2005 ZX4 just started doing it as well. Has ANYONE! had success in finding the cause of this? With so many cars having this issue I'm thinking it is NOT a bad wire or ground, but possibly a mass produced module!

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